He began to work there____.A.on his fifty B.at the age of fifty C.when he fifty Din his fifties

问题描述:

He began to work there____.A.on his fifty B.at the age of fifty C.when he fifty Din his fifties

选D正确.
句子意思:
五十多岁时他开始在那儿工作.
固定短语结构:
在某人多少岁时——【in one's+二十以上整几十数词的复数形式】.例如:
in one's twenties/thirties/forties/fifties 在某人二十/三十/四十/五十多岁时
祝你开心如意!